Akụkụ bụ isi nke iko agba bụ ájá quartz ọcha na potassium feldspar, albite, lead oxide (ihe bụ isi nke iko), saltpeter (potassium nitrate: KNO3; jụrụ oyi), ọla alkali, ọla ala alkaline (magnesium chloride: MgCl, enyemaka mgbaze). , na-abawanye anwụ ngwa ngwa), aluminum oxide ...
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